﻿702 
  Transactions 
  South 
  African 
  Philosophical 
  Society, 
  [vol. 
  xii. 
  

  

  each 
  three 
  bands 
  of 
  elongate, 
  somewhat 
  hair-like, 
  greyish-white 
  or 
  

   slightly 
  flavescent 
  scales, 
  often 
  partly 
  obliterated, 
  but 
  with 
  the 
  

   broader 
  juxta-sutural 
  band 
  always 
  more 
  distinct 
  ; 
  hind 
  femora 
  

   simple 
  but 
  with 
  the 
  spine 
  of 
  the 
  trochanters 
  greatly 
  developed; 
  

   hind 
  tibiae 
  also 
  as 
  in 
  D. 
  dentines, 
  but 
  not 
  at 
  all 
  grooved 
  or 
  concave 
  

   underneath, 
  and 
  therefore 
  not 
  carinate 
  inwardly. 
  The 
  shape 
  of 
  the 
  

   tibiae 
  is 
  nearly 
  the 
  same 
  as 
  that 
  of 
  D. 
  acanthosis, 
  from 
  which 
  

   species 
  it 
  is 
  at 
  once 
  distinguished 
  by 
  the 
  more 
  elongate 
  facies 
  ; 
  the 
  

   female 
  is 
  like 
  that 
  of 
  D. 
  dentipes, 
  and 
  the 
  pygidium 
  has 
  no 
  denuded 
  

   patches. 
  

  

  Length 
  7-7J 
  mm. 
  ; 
  width 
  4 
  mm. 
  

  

  Hab. 
  Cape 
  Colony 
  (Cape 
  Town, 
  Stellenbosch). 
  

  

  Dichelus 
  luctuosus, 
  n. 
  spec. 
  

  

  Male 
  : 
  Black, 
  shining, 
  head 
  and 
  prothorax 
  clothed 
  with 
  black 
  

   villose 
  hairs, 
  prothorax 
  with 
  an 
  interrupted 
  narrow 
  band 
  of 
  white 
  

   scales 
  ; 
  scutellum 
  scaly, 
  elytra 
  with 
  a 
  post-median 
  juxta-sutural 
  

   narrow 
  band 
  of 
  white 
  scales, 
  pygidium 
  not 
  scaly 
  ; 
  the 
  two 
  median 
  

   teeth 
  of 
  the 
  clypeus 
  are 
  very 
  small, 
  yet 
  distinct 
  ; 
  the 
  elytra 
  are 
  a 
  

   little 
  convex, 
  not 
  costulate, 
  and 
  are 
  strongly 
  callose 
  at 
  the 
  apex, 
  they 
  

   are 
  sparsely 
  punctate, 
  the 
  punctures 
  of 
  the 
  sides 
  and 
  in 
  the 
  pos- 
  

   terior 
  part 
  bearing 
  a 
  somewhat 
  thick 
  short 
  decumbent 
  hair; 
  hind 
  

   femora 
  simple, 
  but 
  with 
  the 
  trochanters 
  produced 
  into 
  a 
  long, 
  sub- 
  

   horizontal 
  spine 
  ; 
  hind 
  tibiae 
  compressed, 
  grooved 
  underneath, 
  but 
  

   with 
  the 
  edges 
  of 
  the 
  groove 
  simple 
  and 
  the 
  inner 
  apical 
  parts 
  

   strongly 
  mucronate 
  ; 
  under 
  side 
  briefly 
  villose, 
  the 
  hairs 
  black, 
  

   upper 
  side 
  of 
  abdominal 
  segments 
  with 
  a 
  small 
  patch 
  of 
  white 
  

   elongate 
  scales. 
  

  

  Female 
  unknown. 
  

  

  Length 
  6 
  mm. 
  ; 
  width 
  3^ 
  mm. 
  

  

  Hab. 
  Cape 
  Colony 
  (Cape 
  Town). 
  

  

  This 
  species 
  seems 
  to 
  be 
  very 
  rare. 
  It 
  very 
  much 
  resembles 
  

   D. 
  denticeps 
  in 
  general 
  form, 
  but 
  is 
  at 
  once 
  distinguished 
  from 
  it 
  by 
  

   the 
  long 
  spine 
  of 
  the 
  trochanters, 
  which 
  is 
  absent 
  in 
  the 
  latter, 
  

   and 
  also 
  by 
  the 
  colour 
  of 
  the 
  elytra 
  and 
  the 
  shape 
  of 
  the 
  hind 
  

   tibiae. 
  

  

  Monochelus 
  vittatus, 
  Burm., 
  

   Handb. 
  d. 
  Entomol., 
  iv., 
  1, 
  p. 
  95. 
  

  

  Black, 
  with 
  the 
  elytra 
  chestnut-brown, 
  and 
  the 
  legs 
  chestnut-brown 
  

   or 
  chestnut-red 
  ; 
  head 
  and 
  prothorax 
  sub-villose, 
  but 
  clothed 
  also 
  

   under 
  the 
  hairs 
  with 
  greyish 
  or 
  slightly 
  flavescent 
  scales 
  which 
  

   become 
  much 
  denser 
  in 
  the 
  posterior 
  part 
  ; 
  scutellum 
  densely 
  scaly 
  ; 
  

  

  